Quote:
Originally Posted by Cliff R
+2
The cam used is a BIG player with the 455 and those heads on pump gas. It will pound like SLEDGEHAMMERS with a Comp XE262 or 268 in it and "normal" timing fuel curves.
I've had two 455's in here over 9 to 1 compression using that cam, and one used the HR version of it, XR276HR, and both pinged EVERYWHERE unless we pulled a ton of timing out of them, and ran like crap as well......FWIW.....Cliff
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Thanks Cliff ... I have a feeling this is the problem. I am going to try the easy stuff first ... then if I have to change the cam ... I may just pull the whole engine and take it to Butler and have the whole thing done over.