Nice thread mine....7 years....

I got a 15 RWHP increase going from an EA MPFI cam to an EF XR6 cam......but it wasn't running right up in the top end end either.....so it could have been as much as 20 to 25 RWHP increase.
This is based on what I already had done to the engine prior to cam swap.

HAHA yes indeed. Didn't notice that. Glad to be on the ball.

aftermarket cam (usually regrind) and tune - i use aftermarket ecu's will generally get around 200rwhp give or take, on most engines.