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JUST RECENTLY PURCHASED A YELLOW LT-4 AND THOUGHT I WAS IN GOOD SHAPE SINCE MY BROTHER IN LAWS HAD A SALEEN SC281 AND A GRAND SPORT. NOW THEY HAVE UPGRADED TO A 90 ZR-1 AND A 02 ZO6. I NEED A HEAD, CAM AND EXHAUST PACKAGE THAT WILL NET ABOUT ANOTHER 100 REAR WHEEL HP. HAS ANYONE OUT THERE DEALT WITH A COMPANY OR SPEED SHOP THAT OFFERS SOMETHING LIKE THIS? I WANT TO BE TOP DAWG AND CHANGE MY LICENSE PLATE TO READ Z WHAT? SO THEY CAN ASK THEMSELVES THAT QUESTION.
For that many rwhp, you would prolly need brand new heads and a big cam
You're in their neck of the woods as well. Getting another 100 RWHP isn't going to be extremely easy however. You are most likely going to have to sacrifice emissions to get there. The two main things that are going to kill your emissions to get there are the exhaust (no cats) and the cam (huge...something like a CC306). Beyond the heads/cam you should put in 4.10 gears, this will give you a nice little extra kick in the rear.