RPM for Blaster with Mod pipe?

Hey Guys,
I'm about to tackle tuning my blaster this weekend and need some hep with the high end. Roughly what RPM should my Blaster be turning at WOT? Current mods are: Mod Pipe with bottom screw opened 3/4 (rest closed), High compression Riva head, MSD enhancer, dual cooling, stock prop, stock grate, stock single carb on stock 61x cases with F/A and carbon fiber reeds. Mild exhaust porting. Thanks for any info!
 
Location
dfw
You should see at least 6800 with a stock cylinder and prop. The very best race gas ported 701s could spin the stock prop 7200+ at 52+ mph.
 

nikad58

1974 YZ 701
ok fine.. 6300-6500 Jetted perfect.. I just cant see a limited hitting 6800 unless it has a very low prop.. ( The stockers close to a 18 pitch ) hitting 45-47 mph will take days of tuning a limited
 
Thanks for the replies. I wasn't looking for an exact RPM, just a ball park figure to aim for when tuning the high speed needle.
 
Top Bottom