on an sri 150, the 150 is lbf.ft and its 145bhp, don't know if thats wheels or flywheel. still don't know whether to replace tappets and followers on cams. cars done 73,000 miles but you say your car pulls hard, mine used to. i bought it with 53,000 miles, now its lost its sparkle, just doesnt pull hard through top rpm, instead of screamin from 3,500 rpm it only seems to scream and clear around 5-5,500 rpm by then i'm about to change gear so i'm back to lack of power again and it feels like your in a ford fiesta :lol: any help please ps i change my oil and filter every 5,000 miles