I started out with the Max Power 2602. The track I run at has a large straight. I wanted to get as much speed so I switched over to the 2630. After my engine's hot, if I did not top off right before our 5 minute start I would run out of fuel.

The Max 2602 gave me a lot more bottom end, with a decent top end. With a much longer run time (1 minute longer at least).

I'm going to use the Max 2602.

Running NovaRossi SCT 12 Plus with 20% fuel shimmed with .3mm + .1mm = .4mm.

QUESTION: We have some pretty competitive racing here, if I run 25% or 30% would I see higher top end speeds? With 20% I can get my clutch adjusted enough that it has to much acceleration, but now I'm concerned about the top end. I will work on gearing but though it might be my 20% me vs 30% everyone else.