regency

iTrader: (15)

Since ive had this 228R ive always wanted a bigger one, and have always thought about the MS3 or similar. Soon i will be pulling the motor and freshening it up, and that would be a great time to swap the cam.....

I am running 4.88 gears and 29.5" tires, and i want to rev it more because of the low gear ratio. I will get ARP rod bolts so i can rev it more. Right now im shifting at 6400 and it seems to act like its short shifting. I mean it runs great and has lots of HP/TQ, but i just want a few more tenths out of it.

Just looking for some opinions here!!

99Bluz28

iTrader: (35)

How many degrees of advance is ground into your 228r cam?

Have you considered retarding it a couple of degrees, that would move your power band up.

BOBS99SS

iTrader: (2)

What heads are you running?

MIKELMOTORCYCLE3398

iTrader: (3)

236/242 112lsa Do what lift u need. Mine is .580/.590. Top end out the ***

regency

iTrader: (15)

Running ported and milled (.012) 243's, never been flowed. I also have .040 cometics which i will go back with.

thunderstruck507

iTrader: (18)

Have you had it dynoed? Tried shifting higher?

You could be short shifting.

regency

iTrader: (15)

Yes i have a thread for it, was like 427/403 and peak power 6400 and shifted there.

thunderstruck507

iTrader: (18)

If peak power is 6400 you will be faster shifting several hundred rpm later. How much later depends on where it really falls off hard.