Input for 340 upgrades

flyfish said

To the OP, I don't really follow...is your goal a 10 second street car, or no? I wasn't sure the way it was written. If you did want 10 second power, you won't be getting it without port work on those heads and a smaller converter (or a whole lot of nitrous) + suspension upgrades, tires, gears, carb, etc, etc, etc....

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My old '71 340 cuda from back in the day with the stock 2.02 iron heads, holley strip Dom intake, 850DP, MP .590 sft cam, 1.3/4" race hdrs, 4.30's, 10x28's, TA 4200 stall on stock leafs+snubber went a best of 12.39@108 NA at 3550lbs, my goal was to run a 10, saw I was miles away with no fancy ally heads back then so I hit it with an actual 160hp gain (on 250 shot jetting) N20 cheater kit to run an 11.01@122+ best, that took an actual 528fwhp in that weight..