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Post  hbstang on July 15th 2019, 11:19 pm

just had it dynoed at westech.kaase boss heads.kaase spec roller cam,272-280 at .050 .740 gross lift.,1250 quick fuel,11.6 compression.was a lot of work to get new carb better.pump gas had 3 ounces per gallon of race fuel concentrate.2 1/4 dyno headers.
pump gas 557 20190610
just had it dynoed at westech.kaase boss heads.pump gas 557 Img_1110
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Post  BBFTorino on July 15th 2019, 11:36 pm

Very cool, Dan!! Cool

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Post  t-bird racer on July 16th 2019, 7:48 am

Sooooo Sweeet! I love it.
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Post  AZFairlane on July 16th 2019, 9:00 am

hbstang,

Are your Boss heads stock out of the box, or are they modified in some way?
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Post  wickettoby1 on July 16th 2019, 9:11 am

Do you think the power would have kept going up if you revved it higher?

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Post  gt350hr on July 16th 2019, 3:49 pm

Dan that torque "curve" if you can call it a curve ! LOL is VERY impressive. Power is obviously great too.
Great job ,
Randy

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Post  wayney on July 16th 2019, 6:21 pm

great build

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Post  hbstang on July 16th 2019, 7:38 pm

thanks for the replies.the Kaase heads and intake were ported by Kaases guy Chris by hand.i was told it wouldnt help power much,but did it anyway,in case i want to use the heads later on a bigger inch motor.
compression ended up more because of block being decked and pistons out by .010 etc.wanted it around 11-1 or less.11.6 is a little high for pump gas and a little low for race gas.on one pull it went to 7200 but peak was still at 7000,but it didnt drop off much.lash went from .014 cold on initial to .030 after break in,so we set it at .005 cold.oil pressure did a big jump to 109 psi that was odd.was strong all the way.Kaase oil pump.Steve Brule did a lot of tunning to get afr were it was.
the engine sounded angry at full tilt!

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Post  glenevans on July 16th 2019, 10:27 pm

Very cool!

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Post  Mark Miller on July 16th 2019, 11:13 pm

Very Nice!!! Smile

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