i have an 89' notch with 306 and rebuilt t-5. The problem is it is so hard to shift into gear, sometime I use two hands. the trans is leaking a little from the top, probably from when it was rebuilt. It has a heavy duty clutch and I heard the firewall can give a little causing it to not totally disengage. I was considering swapping to a tremec or a built t-5. Also getting new clutch cable/adjuster. I think a company called Promotion Performance Powertrain sells something called a Wide Trac Firewall Stabilizer System which sandwiches the firewll between 2 peices of cnc cut aluminum to prevent firewall flex. Also does a Centerforce Clutch have the same hard to puch pedal as a heavy duty clutch? ANY SUGGESTIONS PLEASE?????