I run a 4.5 and make 680 rear wheel... car has run 10.20 at 138.8. Lund doesn’t recommend any more pulley than that on my car with pump gas. Next time to track I may drop to a 4.38 and dump 5 gallons of ms 109 in the tank. Also my kit shipped with the 4.5 pulley
Car is in the shop now getting Gesi gsports installed... also having trans clutches and a torque converter installed.... should have it back in 1-2 weeks..... I’ll report back when all done
If am understanding your posts as written here..... the crank broke when you weren’t the owner of the car... which was revealed after your first post about your crank snapping.... so whose crank was it
Good to know.... they wanted me to ship back to who I bought from at my cost.... these tires are heavy and shipping would have been $$... I was told a new set may be no better...so I just kept them.... I’m going to call and ask them to to allow me to do what you did..
Any chance you remember...
I was running mine at 40psi and called Mickey Thompson to express a vibration issue even though the tires were balanced. While spinning the tire on the balancer both tires had a wobble. The shop that installed the tires does many and said they are all like this, crappy molds. Mickey Thompson...