Heya,

go 3in all the way, no point in having to redo it later

my 1ggte runs 111mph.

you trap speed is a pretty accurate measure of power to weight.
wheelspin unless very very excessive does nt seem to affect it much.

when i ran i had a difference of over a second from my best to my worst run.....but only 2 mph difference between all runs.

Stew