I got a 2.3 turbo swap and it pulls hard and then just kind of like it hits a wall. I put a adjustable fpr on it and set it for 35 psi idle. When I rev it it builds pressure but if I rev it and hold it at like 3-3500 rpm or so the pressure falls off to like 35 psi. Just wondering if this is normal. Trying to rule out problems. I checked and 're checked timing both cam and distributor.