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    1974 Thermoquad, 360 HD Truck , Rebuild adding performance modifications

    Yup, a TQ is a QJ on steroids. As for QJ jets fitting TQ, nope. The QJ does not have removable sec jets & the pri jets are totally different.
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    69 383 A-body Dyno results

    The 750 Chrys fitted AVS carbs are 750 cfm, probably more..... In my 77 catalog, there are 6000 series AVS carbs [ 6433 to 6437 ], listed as 630 cfm. The 9000 series & Comp Series AFBs are listed at 625cfm. Same pri & sec bore sizes, same pri venturi. The AVS does not have a sec venturi or...
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    70 Valiant Hardtop Update

    Looks good! I had the same model, genuine 245 Pacer.
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    Just as slow as before mods..

    Haven't read 5 pages, so might have already been mentioned: - chirping tyres requires low end tq - headers with too large primaries will kill low end tq & even correct size pipes does not guarantee a power increase... - as will a cam that is too big... - alum intake does mean more low end tq -...
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    How much timing can it take

    Have you tried this [ you should do, if not done]: engine idling, rotate dist for highest idle rpm. For a low comp engine with a stout cam, I'll bet is a LOT more than 18*.... Report back.
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