393Clevor,
I think you will find out that on a dyno the 750DP will put more HP(maybe 10-15 more HP) but the 650DP will be more responsive for the street. I originally went with a 750 and was convince to go down to a 650 due to the throttle reponse on the 750DP to be too doggy under 4,000 rpm and most of us will be driving 95% of that under 4,000 rpm on the street. Let us know what you found out.
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http://www.spalisautodetailing.com/
70 Mercury Cougar 347 Stroker(415HP/440TQ), Tremec TKO 5 speed, Ford 9" w/3:55 gearing
Amsoil Full Synthetics Dealer----contact/email me about some "High Performance Oil"
<font size=-1>[ This Message was edited by: Spali32 on 10/30/06 12:19pm ]</font>