I NEED SPARK PLUG RECOMMENDATIONS

I just changed a few things on my car this week and installed a new set of AR3934's. Fired it up and I noticed fire jumping all around the fat part of the porceline just before the socet flats on 1 of my plugs. Pulled the plug to inspect and can't find even a hairline crack In stalled a new one and it's A/ok. I wonder if Autolite is made overseas now too

Hey, Rick: I had the same problem with a set of AC plugs with my first big block. I was in too big a hurry to get it running, instead of waiting for the correct Autolite plugs. They too were giving me the spark jumping all around the porcelain, and giving only a low grade "fizzle" of a spark at the electrode after only a couple hours running time!

Wayne (SAWDOFF) Pearce

Wayne I have never seen an Engine that needed 8 psi fuel pressure, I think you can drop that to 6.5 to 7 psi and it might help with your richness....


Randy

Hey, Randy: Thanks for the suggestion - tomorrow I will drop the pressure back to 6 PSI and give her a try. I thought I read an entry here just recently (can't find it now) that said to raise the fuel pressure up to about 8 PSI to make the SV-1 happier at higher RPM's.

Wayne (SAWDOFF) Pearce

Wanye,
I got a SV-1 also and I had the same issue, threw alot of things at it it would only do it at top of 1st gear 6400 slight miss and at top of sec very slight there, I called Patrick of PRO SYSTEMS and discussed it. I had one of his regulators but was not using it and have a mallory 250 pump . I had steady 7psi on both bowls, both had gauges. He insisted I install his system which has a vacuum line going to it to adjust psi as vac decreases. Well I installed and went to the track, set at 6 psi at idle with fuel level just at the bottom of the window. At WOT it would go to 12psi. It never missed again and ran .16 faster than it ever has, I was surpised to say the least. On your SV-I you may have to adjust air bleeds to clean up the idle, I have experimented with it alot the past summer made close to 300 passes on it. The carb setup is just about excactly what it came from pro systems now and is deadly consistent.