Is anyone using The streetfighter or the sizzler C4?

I used the Streetfighter for a time. I didn't have any trouble out of it and was running around 425 hp off the crank. I was also using a 2400 stall converter, again, no problem. I think you'll get good service out of that tranny.... Just be sure to get the correct tranny for your needs. The 70 & newer tranny is different than the 69 & older tranny, so unless you want to be forced to get a new torque converter, choose carefully.

There is, or maybe just ended, a sizzler for sale on e-bay cheap. I have the street fighter and love it. Just had it upgraded to a super street fighter...ooooohhhh awwwwww. Choose the stall speed carefully though.