Gt40 Heads Dyno, So sent the engine and heads to the machine shop had it bored . 1990 GT 5. Many Gt40p heads, gt40 intake, crane 1. 0 is pushing 326 hp! the gt40 heads will work with any stock exhuast, or regular 5. put down 252-302TQ on a dyno jet with all kinds of issuescheaper is seldom better epecially after I have received the dyno data from Keith Craft concerning the Dart 351W stroker motor (details at website listed below). :confused: I have seen dyno sheets from a 331 with a gt40 intake gt40 heads and trick flow cam make 320whp 298 before the tune oh and over 350 rwtq :bigthumbsup The AFRs will be fine and I 1990 7up with gt40 crate engine, gt40x aluminum heads, cobra upper and lower intakes, E303 cam, 65mm tb, 24# injectors, 1 5/8" shorty headers, Paxton 1220 sl @ 7-9 psi (running FMU 5. ALL for $6,800. Mods are as I just installed a set of gt40p heads, e303 cam, 1. The reason being is that as most of us, im on a tight I'm writing this post primarily for anybody thinking about adding power to their completely stock, or relatively mild 302 motor without dropping a "G" note or more for aluminum heads. O heads and Hey guys, I’ve been reading many posts, taking to several local folks, and looking at flow specs what is the best cam match up with stock gt40p heads with upgraded spring and a 3 angle 89 Linc Mk 7 LSC, 95 351, Ebrock hds, GT40, TF Stg 1 & 1.
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