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#1
11-25-2024, 03:20 PM
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Should add, the 3.73 & M-21 were offered on the 400 4bbl in the Formula.
I have nothing on the heads though. 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#2
11-25-2024, 03:24 PM
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I'm pretty sure that all the RA engines got the #12 heads. The non RA engines got #12 heads on the manual trans cars and #13 heads on the automatic cars. I don't think the trans and rear end ratios mattered.
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