G'Day Mate, I just rebuilt one of these power plant's over here and after doing some homework found that the stock headers or 455 were the best for a CAR. The balancer bolt need's to be 200fp's (So it say's in the referance section i don't know why just assume it has something to do with the toque/rpm). I used a standerd q-jet witch are quite common out here at 800cfm. goggle (holden 308 v8) the linkage was slightley differant but it worked for me. Rebuit a 430 with 455 stage 1 head's, 455 inlet,q-jet. I stuck to the referance page and when it turns over it is nice and tight. I got a lot of stuff from northen Auto Part's (801 Lewis Blvd Sioux City,IA 51105,E-Mail northenautoparts.com) Good Qulitiy Good price very good on shipping. Hope this help's. I can send you some pic's of the rebuild if your keen. Cheers Troy
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