552 p-51

Ok. Thanks for the info. I got my cam man on the phone right now. The best 60ft my car has had on the old set up is 1.24 on the back tire

Ok guys i called my cam guy back hes going to send it back. Just like yall are saying with the extra stroke and cubes it should like that cam the way it is.

IDT-572 wrote:I couldn't even think of running mine with out the progressive, it went 1.18 the other weekend on the motor alone.............. Put your cam in at 112 to start, if you use the 114 cam it will be close.

your converter is too loose for the juice there snake............you tighten it up and you wont have to leave so soft with it....................and its more of a bumper remover deal lol.

larry552 wrote:I do have an eldebrock progressive and i think im going to install a 7531. What kind of e.t do yall think this new set up should run

between the two you should have plenty of adjustability w the deal. I dont kill mine a whole lot at the hit, its a fine line for sure...........our track has always been pretty crappy but we have new managment now and since they took over its been a learning curve for sure.

The conveter is a ptc 9.5 and it is pretty tight. It rans 6.08 at 115 with the 521 with 4.30 gears and i put the 3.73 in to calm it down on the nos and it went a 5.45@131

richter69 wrote:

IDT-572 wrote:I couldn't even think of running mine with out the progressive, it went 1.18 the other weekend on the motor alone.............. Put your cam in at 112 to start, if you use the 114 cam it will be close.

your converter is too loose for the juice there snake............you tighten it up and you wont have to leave so soft with it....................and its more of a bumper remover deal lol.

That's true , but to tighten it enough to get below the majority of the torque to calm it down, it would be way too tight on the engine, and that's where I run it most of the time.

I know you run yours mostly n/a, not nit picking just an observation..............

Well the converter when i first got choked the 521 down so i loosened it up a little. But what do i need to do to my heads

larry552 wrote:Well the converter when i first got choked the 521 down so i loosened it up a little. But what do i need to do to my heads

The new engine will loosen the converter even more , just run it and see where it stalls. The heads are good out of the box. Just inspect them good and install them.

Ok i will me and my dad trying to figure out what we are doing wrong. I guess that cam in my 521 was just wrong and had me off

larry552 wrote:Ok i will me and my dad trying to figure out what we are doing wrong. I guess that cam in my 521 was just wrong and had me off

16-20° spread on a 114° LC and good pushrods.

yuuup on the good pushrods.......

richter69 wrote:yuuup on the good pushrods.......

What's a "good" pushrod look like? Got any pictures?

I know you have pictures of your cat

railroad spike series..........

HeRo pushrods.

More like chopsticks...

IDT-572 wrote:The heads are good out of the box. Just inspect them good and install them.

Check the castings around the threaded holes. Mine had a little bit of loose material that I knocked off with a small rat tail file. Other than that they were good to go...

Hey guys i have kasse pushrods that Roger sent me and seem to work good

Those are nice what brand are those

Trend.

you dont see the 2.300 titanium vales either but they are there.............

richter69 wrote:Trend.

you dont see the 2.300 titanium vales either but they are there.............

Playa

jbozzelle wrote:More like chopsticks...

rebar !!!!

rebar goes in the gas pedal................

Here lately the engines coming in my shop all are showing valve float.

You don't need to skimp on the valve train, you will have a train wreck.................

larry552 wrote:No cam is fine i slung a rod in the old combination and just wanted to have it checked and i wanted to run more on the motor hoping to run 5.80 or so and then spray it with about 250 and get to that 5.20 goal

is this 552 with 250 shot a stock type block?