the car is driven regularly its fully registered. just over the christmas new year break we drove it down to the beach for a bit of a cruise
it can be a bit exhaust loud but we have a device we can fit that reduces exhaust noise
as fer the crank, i have never heard of one braking yet .. as for revs well if you are still running the hydraulic buckets you are restricted in revs as they dont function well high in the revs
if you wnat to rev them this high you must convert to a solid camshaft and solid bbuckets with shim adjustment
we have still retained standard hydraulic buckets so rpm is about 8500
boost about 4500 i reckon
the car is certainly NOT mini tubbed or squared up it still retains factory size wheel wells.
i think its way cheaper for you to fit a cometic MLS head gasket. they are pretty cheap part number found here
traction is pretty good. we race using drag radials and have so far done a 1.62 60 footer hoping to improve on this soon