The manifolds are just reworked stock Fords turned upside down. I thought about the 240 setup since I could get the complete nose cheap, but what was holding me back was the strut front springing of the 240s. It took alot of measuring and weighing to get the custom front and rear coils right to give me the ride height I wanted. As far as nose heavy goes, not all that noticable to me as the car was a carbed B20 and a auto. so it wasn't fun in the twisties to begin with.