im thinking about ordering gsc s2's and gsc beehives. my issue is when reading on the beehives it says in the description that with the oem retainers the max cam lobe lift is .259" . if im going with s2's (274/272) will using oem retainers reduce the amount of lift with those cams?

i also plan on using the stock 9 turbo for a while longer, will i notice any gains with the cams? or would it be better to just save my money? i already have a 3 inch downpipe, test pipe and catback, will be also using a 3.5" intercooler with 2.5" piping and a speed density conversion




also, on the fuel pump, i want to know how i can tell if its a 255. the sucker seems kinda loud for a stock pump.

 

Most stock pumps are never heard.

 

so im guessing then it has to be upgraded. i dont want to have to take it out to find out