Hi, all. It's been a while. I've been playing with 283's again. That got me wondering. What's the quickest pass you've made with a dual quad 283 in a tri five? (Or similar weight car)
The newly re-created YOO HOO TOO 56 Chevrolet Sedan Delivery has dipped into the 13's with a 265 (with some modern tricks, and a 4 speed Hydro. It's also running 2 fours. Look up YOO HOO TOO on FaceBook for the details. I am Butch/56sedandelivery.
4.46 gears. Trans was a B-W T-10. The stock cam was all done at about 6200. Best speed was 110.90 at Pomona.
Ran 12.20's all day long. I believe I may have squeaked out a 12.19/12.18 once. All steel car except for the hood scoop. Sorry for the non HMAB friendly wheels.
283 that was 60 over with 1.94 heads, 650 center squirts (If I remember right), cannot remember the cam spec's (need to find the card), 13.1 compression, with 4.56 butt gears. I was chatting with my grandpa this morning and he mentioned that the quickest it ran was a 12.02 @ 116mph. The car weighed in at 3350lbs.
Ran a best of 14.7 in my 64 Malibu but it's a mostly stock 283 with only 1 quad (four jet). I don't see any reason a good one wouldn't get into the twelves. I had a blast- chirping the tires going into 4th gear--
My last 295 with the 097 cam and milled iron bow tie heads 8.5:1 compression 42 lbs flywheel turned 12.99 @ 99mph at little River in my 55 years ago with a tremec 5 speed and 4.11 gears. It was all holeshot. No horsepower to speak of. 60 ft was about 1.70.
Not a pass, but when I was a kid (early 60s) some old guy (probably 20 something) had a dual quad '57 Vette that was pretty hot shit. (& he wasn't shy to let'r eat ) Held the local street crown for a while.
Just as an example my 265 + 030 @ 3650#'s went high 13's @ 105 or so. This was in 1965. It held a couple of the alphabet AHRA records and only lost once in NHRA competition. Ran various two barrel combinations mostly big Pontiac 2GC's. Set one AHRA record with a 3 barrel cut in half!