The good news. I had the exhaust manifold resurfaced and fitted a new gasket. No more ticking and smoking. I did some road testing and got max boost of almost 9 psi with a 10 psi wastegate actuator. The AFR didn't drop below 11 under ful boost. So the carb jet changes worked.
The bad news: The clutch slips sometimes in 3-5 gears when I go full throttle. In one occurance I was driving about 40 mph in 3rd gear and floored the throttle. The engine revved imediately bu the car didn't accelerate. This had happened before but I wasn't sure what was going on. I'm sure of it now. I checked the clutch free-play and it's OK. The clutch cover and disk are relatively new.
So does anyone know of a stiffer-than-stock cover for a 180mm unit? Maybe one from an R5 Alpine turbo?
The bad news: The clutch slips sometimes in 3-5 gears when I go full throttle. In one occurance I was driving about 40 mph in 3rd gear and floored the throttle. The engine revved imediately bu the car didn't accelerate. This had happened before but I wasn't sure what was going on. I'm sure of it now. I checked the clutch free-play and it's OK. The clutch cover and disk are relatively new.
So does anyone know of a stiffer-than-stock cover for a 180mm unit? Maybe one from an R5 Alpine turbo?