340 Build Advice

I don't think it will spin that much, but I also have a 6-speed so no converter action there. I built a stock stroke engine partially because I thought the extra low end might be a bit much to get traction on the street. But its a lot more than 280hp. I'm making 400 lb-ft at 2800 rpm and it can hook up fine. But I don't have M&S radials like BFG Radial T/A's or Cooper Cobra GTs like a lot of people have. Those spin really hard. I used to have 225-60-15 BFG G-force sports and I could spin those pretty hard, my friend has them on a 71 Demon with a 318 Magnum with a small cam and a stock 904 and it only spins a little usually after it rolls out a bit, now I have 275-35-18 Continental ExtremeContact DW and as long as its over 50F it doesn't spin so much unless I'd get aggressive on the clutch. A little spin on the 1-2 shift but I basically shift from peak HP to peak torque since a 6000 shift gets me to 4400.

Moral of the story, Tires matter a lot, compound as much if not more than width.