[The donkey CRX]

Wow! Thanks for all the detailed information. This will give me a lot to consider.

I like your final advice and will wait until I have all the aero and rolling resistance items completed and then consider engine mods based on how the stock engine reacts to these mods.

I have read on EM that it is hard to predict how your current engine and trans gearing will perform when powering a totally different car after extensive aero mods.

So far, the red VX engine seems to really work better with the reduced drag of the aero mods we did. It has produced better MPG's because it takes less torque and throttle to produce better MPG. At least that's the way I perceive it

Thanks again for all this valuable info.