Thread: head upgrade disappointment

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Thanks for the input guys!

The chambers are cnc machined to exactly 64cc,my camels were 64cc as well!
I bought them from skip white performance,with a cam around 480/510 lift they
dyno at 410 horsepower according to his website. I had 9.80:1 approx comp ratio
with the camels.
Do I still have 9.80:1 ratio when I changed to aluminium heads? I was told my
ratio is lower when you change to aluminium.

Tech inspector worked out my comp ratio a while back !

My car weighs 2600 lbs, T5 stick shift, 3.08 rear gears and 24" diameter tyres!

Originally Posted by dave350v8

Thanks for the input guys!

The chambers are cnc machined to exactly 64cc,my camels were 64cc as well!

I think from the fact that the chamber size was matched and is even we can rule out chamber size as an issue. Skip White doesn't put out junk or sell lies.... IMO, the runner volume is the issue to be addressed.