Both engines have the same injectors and dual fuel pumps. However, they max out around 65 psi. The fuel pumps are controlled by a module that increases fuel pressure in relation to boost. There are aftermarket pumps and voltage controllers that will work with the factory ECM to increase capacity.
The Winternationals Super Comp money round was historic as it marked the 13th brother-vs.-brother final in NHRA history. Gabriel Torres took the win over his brother, Val Jr., with a .035-second reaction time and 8.922 at 165.46 on the 8.90 index to a .024 and 8.941 at 176.26.
Upgrades are usually done in stages. Each level will provide more performance than the one before it. However, they will also be more involved and expensive. The first upgrade we recommend is tuning the computer. This involves changing the fuel and ignition curves to optimize performance. A good tune can gain up to 40 hp on a stock engine. (Any significant upgrade will require re-tuning the computer.)
Your TPI and exhaust modifications should help performance, but don’t get so carried away that you give up everyday reliability. You should be able to hit the 350 hp mark with the computer and custom-burned chip. If you change fuel injectors, start with 22 lb./hr. units and go up only if top-end performance dictates more fuel.